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Influence of temperature and hydrodynamic conditions on the corrosion behavior of AISI 316L stainless steel in pure and polluted H3PO4: Application of the response surface methodology

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Influence of temperature and hydrodynamic conditions on the corrosion behavior of AISI 316L stainless steel in pure and polluted H3PO4: Application of the response surface methodology

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dc.contributor.author Sánchez Tovar, Rita es_ES
dc.contributor.author Montañés Sanjuan, María Teresa es_ES
dc.contributor.author Garcia-Anton, Jose es_ES
dc.contributor.author Guenbour, Abdellah es_ES
dc.date.accessioned 2016-02-26T08:32:54Z
dc.date.available 2016-02-26T08:32:54Z
dc.date.issued 2012-03-15
dc.identifier.issn 0254-0584
dc.identifier.uri http://hdl.handle.net/10251/61197
dc.description.abstract Phosphoric acid is mainly produced by the wet acid process, where corrosion problems could be intensified due to the presence of impurities in the phosphate ores. Operating temperatures and flowing conditions aggravate the aforementioned problems. This work studies the influence of temperature (25-60 degrees C) and hydrodynamic conditions (Reynolds numbers from 1456 to 5066) on the corrosion of AISI 316L stainless steel in pure and polluted phosphoric acid solutions, by means of cyclic potentiodynamic polarization curves in a hydrodynamic circuit. The effect of temperature is the same as that caused by impurities, that is, higher corrosion rates and hindered passivation and repassivation resistance of the alloy. Statistical analysis by means of surface response methodology proved that the effect of temperature on the corrosion parameters of AISI 316L is more influential than the Reynolds number effect. The Reynolds number seems to have no significant influence on the corrosion behavior of stainless steel. Furthermore, the influence of temperature on the corrosion rate is much higher than on the rest of the corrosion parameters analyzed, especially in polluted phosphoric acid solutions. AISI 316L stainless steel has a clear interest for the phosphoric acid industry as a component material of some equipment due to its good corrosion properties at the different temperatures and Reynolds numbers studied even in polluted media. (C) 2012 Elsevier B.V. All rights reserved. es_ES
dc.description.sponsorship The authors would like to express their gratitude to the Spanish MAEC (PCI Mediterraneo C/8196/07, C/018046/08, D/023608/09, D/030177/10), to the FPU grant given to Rita Sanchez Tovar, to the Generalitat Valenciana for its help in the CLSM acquisition (MY08/ISIRM/S/100) and to Dr. Asuncion Jaime for her translation assistance. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation Spanish MAEC (PCI Mediterraneo) C/8196/07 C/018046/08 D/023608/09 D/030177/10 es_ES
dc.relation FPU es_ES
dc.relation Generalitat Valenciana MY08/ISIRM/S/100 es_ES
dc.relation.ispartof Materials Chemistry and Physics es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Alloys es_ES
dc.subject Corrosion test es_ES
dc.subject Electrochemical techniques es_ES
dc.subject Corrosion es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title Influence of temperature and hydrodynamic conditions on the corrosion behavior of AISI 316L stainless steel in pure and polluted H3PO4: Application of the response surface methodology es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.matchemphys.2012.01.024
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear es_ES
dc.description.bibliographicCitation Sánchez Tovar, R.; Montañés Sanjuan, MT.; Garcia-Anton, J.; Guenbour, A. (2012). Influence of temperature and hydrodynamic conditions on the corrosion behavior of AISI 316L stainless steel in pure and polluted H3PO4: Application of the response surface methodology. Materials Chemistry and Physics. 133(1):289-298. doi:10.1016/j.matchemphys.2012.01.024 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.matchemphys.2012.01.024 es_ES
dc.description.upvformatpinicio 289 es_ES
dc.description.upvformatpfin 298 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 133 es_ES
dc.description.issue 1 es_ES
dc.relation.senia 231650 es_ES


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